XC4VFX20 XILINX [Xilinx, Inc], XC4VFX20 Datasheet - Page 22

• Manufacturer Part Number: XC4VFX20
• Description: DC and Switching Characteristics
• Manufacturer: XILINX [Xilinx, Inc]

Table 27: IOB Switching Characteristics
Table 28: IOB 3-state ON Output Switching Characteristics (T
Ethernet MAC Switching Characteristics
Consult UG074: Virtex-4 FPGA Embedded Tri-mode Ethernet MAC User Guide for further information.
Table 29: Maximum Ethernet MAC Performance
DS302 (v3.2) April 10, 2008
Product Specification
Notes:
1.
2.
3.
HSTL_II_DCI
HSTL_III_DCI
HSTL_IV_DCI
HSTL_I_DCI_18
HSTL_II_DCI_18
HSTL_III_DCI_18
HSTL_IV_DCI_18
SSTL2_I_DCI
SSTL2_II_DCI
LVPECL_25
SSTL18_I
SSTL18_II
SSTL18_I_DCI
SSTL18_II_DCI
T
Ethernet MAC Maximum Performance
IOTPHZ
The I/O standard is selected in the Xilinx ISE
All I/O timing specifications are measured with V
The values of the DCI reference resistors must be within a 20Ω–100Ω range. Refer to UG070, Virtex-4 FPGA User Guide, for detailed information.
IOSTANDARD
Attribute
Symbol
R
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(1)
Description
1.28
1.28
1.28
1.26
1.26
1.26
1.26
1.31
1.31
1.38
1.31
1.31
1.31
1.31
-12
T input to Pad high-impedance
Speed Grade
T
®
1.47
1.47
1.47
1.44
1.44
1.44
1.44
1.51
1.51
1.59
1.51
1.51
1.51
1.51
-11
IOPI
software tool using the IOSTANDARD attribute.
(1,2)
CCO
at –5% from nominal.
(Continued)
Description
1.64
1.64
1.64
1.60
1.60
1.60
1.60
1.68
1.68
1.77
1.68
1.68
1.68
1.68
-10
www.xilinx.com
Virtex-4 FPGA Data Sheet: DC and Switching Characteristics
1.83
1.90
1.75
1.89
1.85
1.80
1.77
2.09
2.07
1.52
2.15
1.92
1.97
1.87
-12
Speed Grade
IOTPHZ
T
1.96
2.04
1.87
2.03
1.98
1.93
1.89
2.25
2.24
1.61
2.33
2.06
2.12
2.00
-11
IOOP
)
-12
2.13
2.22
2.03
2.21
2.16
2.09
2.06
2.46
2.45
1.74
2.54
2.24
2.32
2.18
-10
Speed Grade
0.88
-12
10/100/1000
1.83
1.90
1.75
1.89
1.85
1.80
1.77
2.09
2.07
1.52
2.15
1.92
1.97
1.87
-11
-12
Speed Grade
Speed Grade
1.01
-11
T
1.96
2.04
1.87
2.03
1.98
1.93
1.89
2.25
2.24
1.61
2.33
2.06
2.12
2.00
-11
IOTP
-10
1.12
-10
2.13
2.22
2.03
2.21
2.16
2.09
2.06
2.46
2.45
1.74
2.54
2.24
2.32
2.18
-10
Units
Mb/s
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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